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                    <h1 class="clearfix">
                        <span class="pk-color-title">Object.hasOwnProperty()</span>
                        <span class="pk-float-right pk-tip">Core > Object > hasOwnProperty()</span>
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                        <div class="pk-unit-tag">Description</div>
                        <pre>    检查一个属性是否是继承的。

    JavaScript对象可以有自己的属性，也可以从它们的原型对象那儿继承属性。hasOwnProperty()方法提供一个识别继承属性和非继承的本地属性的方法。</pre>
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                    <h1 class="clearfix">
                        <span class="pk-color-title pk-italic">参数 object.hasOwnProperty(propname)</span>
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                                <th class="pk-w120">参数名</th>
                                <th>描述</th>
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                        </thead>
                        <tbody>
                                                        <tr>
                                <td>propname</td>
                                <td>包含对象的属性名的字符串。</td>
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                        <span class="pk-color-title pk-italic">返回值</span>
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                        <div class="pk-unit-tag">Description</div>
                        <pre>如果对象有一个指定名字的非继承的属性则返回true；如果该对象没有指定名字的属性，或者这个属性是从它的原型对象继承而来的，则返回false。</pre>
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                        <span class="pk-color-title pk-italic">代码示例</span>
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                            <span>Code</span>
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                        <pre><span class="pk-code-key">var</span> o = <span class="pk-code-key">new</span> Object(); // Create an object
o.x = 3.14; // Define a noninherited local property
o.hasOwnProperty("x"); // Returns true: x is a local property of o
o.hasOwnProperty("y"); // Returns false: o doesn't have a property y
o.hasOwnProperty("toString"); // Returns false: toString property is inherited</pre>
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